Which technique is used to purify a solid organic compound that sublimes on heating?
Sublimation is the process where a solid turns into a gas without passing through the liquid state, useful for purifying compounds like camphor or naphthalene.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography